An advertiser creates a display ad with Ad gallery. It doesn’t show properly in all the sizes the advertiser wants to use. What should the advertiser do to ensure that it shows in all sizes without limiting exposure?

Create new display ads that will work well with the ad sizes that aren’t working properly

Continue to redesign the ad with Ad gallery until the content shows properly in all selected sizes

Allow all ad sizes to show on all placements

Target placements that accept only ad sizes that properly show the content